Catching EVM revert in contract calls

web3p / web3.php

A php interface for interacting with the Ethereum blockchain and ecosystem. Native ABI parsing and smart contract interactions.

MIT License

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Catching EVM revert in contract calls #123

Closed l-henri closed 5 years ago

l-henri commented 5 years ago

Hello,

I am using the library to send transactions to a contract function. I would like to be able to assess when a transaction failed and the EVM reverted. I am using the method $contract->at($contractAddress)->send(), but when the transaction reverts I am not sure how to see it. I tried using the call() method, with the same result. Any tips?

Thanks,

l-henri commented 5 years ago

So what I am doing to go around this is:

use send()
get transaction hash
use getTransactionReceipt()
check variable "status", which indicates if the transaction has failed or not

sc0Vu commented 5 years ago

@l-henri

To keep the right state on blockchain, you should always check the transaction status.
The state will change if transaction complete. Hope this helps!